'use strict'

let nunjucks = require('nunjucks');

let createEnv = function (path, opts) {
    path = path || "views";
    opts = opts || {};

    let envOptions = {
        watch: opts.watch === undefined ? false : opts.watch,
        autoescape: opts.autoescape === undefined ? false : opts.autoescape,
        throwOnUndefind: opts.throwOnUndefind === undefined ? false : opts.throwOnUndefind,
        noCache: opts.noCache === undefined ? false : opts.noCache
    }
    let env = nunjucks.configure(path, envOptions);

    return env;
}

module.exports = async (ctx, next) => {
    ctx.render = function (view, model) {
        let env = createEnv("views", { autoescape: false });
        ctx.body = env.render(view, model);
    }
    await next();
}